Physics 007 sample midterm #1 (spring 2010)

25. Pythagoras is well remembered by his theorem which states thatA) The magnitude of the sides of a triangle is independent of its anglesB) The sum of the squares of the lengths of the small sides of a right triangle equalsthe square of the length of the largest sideC) All angles in a right triangle are equalD) Every right triangle has a 90 o angleE) The sum of the cubes of the lengths of the of the small sides of a right triangleequals the cube of the length of the largest side26. Aristotle believed thatA) The sun was the center of the universeB) The moon circled the sunC) The sun circled the earth but all the other planets circled the sunD) The universe had no centerE) The earth was the center of the universe27. Erathostenes was able toA) Prove that the square of the hypotenuse of a right triangle was equal to the sum ofthe squares of the other two sides.B) Show that the musical scales were related to the integer numbers, and convincedhis contemporaries that the motion of the planets generated the “music in thespheres”.C) Predict that the motion of the planets and eclipses fairly well with hisearth-centered model of the universe.D) Measure the radius, diameter and circumference of the earth to a high degree ofaccuracy.E) Measure the ratio of the distance to the moon from earth to the radius of the earth.Page 6